نتایج جستجو برای: mercury injection

تعداد نتایج: 197989  

Journal: :The Journal of Automatic Chemistry 1996
P. B. Stockwell W. T. Corns N. Brahma

Coupling specific atomic fluorescence spectrometers to vapour generation techniques is a highly sensitive approach to the determination of trace levels of mercury. In many sample types the levels of the mercury content are extremely high and the matrix may have a deleterious e2ffect on the measurement. This paper discusses the application of discrete sample injection techniques to broaden the r...

Journal: :Journal of biomechanical engineering 2010
Jhon F Diaz Mehdi Karzar-Jeddi Nejat Olgac Tai-Hsi Fan Ali Fuat Ergenc

Intracytoplasmic sperm injection (ICSI) is a broadly utilized assisted reproductive technology. A number of technologies for this procedure have evolved lately, such as the most commonly utilized piezo-assisted ICSI technique (P-ICSI). An important problem with this technique, however, is that it requires a small amount of mercury to stabilize the tip of the penetration micropipette. A complete...

سقراط فقیه زاده, , سید محمود قاسمپوری, , عباس اسماعیلی ساری, , قاسم ذوالفقاری, ,

Background: Dental amalgam, a mixture of approximately 50% mercury with silver, tin, zinc and copper in varying ratios, is a major source of mercury pollution in the general population not occupationally exposed. The toxicity of mercury is enhanced because it is so readily absorbed, with around 90-100% of mercury vapor being absorbed through the oral mucosa. The aim of the current study is to e...

ژورنال: سلامت کار ایران 2013
ابراهیمی, علی, شیرخانلو, حمید, فقیهی زرندی, علی, بانشی, محمد رضا , کیان, محمد جواد, گلبابایی, فریده ,

Background and aims: Sampling of toxic mercury vapors (Hg0) is necessary for determination of occupational exposure levels of workers exposed to this contaminant. Given the tendency of carbon nanotubes for mercury adsorption, carbon nanotubes can be expected to be suitable sampling media for mercury. The aim of this study was to compare the performance of multi-walled and single-walled carbon n...

Journal: :E3S web of conferences 2023

Interpretation of the relationship between heterogeneity and flow in porous media is very important increasing recovery factor for an oil or gas reservoir. Capillarity instance, controls fluids static distribution a reservoir prior to production remaining hydrocarbons after commences. Therefore, capillary pressure data are used by petroleum engineers, geologists, petrophysicists evaluate charac...

ژورنال: طب کار 2019

Introduction: dentists are exposed to mercury vapor due to occupational exposure to amalgam Which can endanger their health. the aim of this study was to measure the concentration of urinary mercury in dental students and the restorative specialists one of the dental schools in Iran in order to determine the effect of mercury vapor on them. Methods: The study population Including 40 dental stu...

Journal: :محیط شناسی 0
کامران الماسیه دانشجوی کارشناسی ارشد محیط زیست دانشگاه کردستان شهرام کبودوندپور استادیار گروه محیط زیست دانشکدة منابع طبیعی دانشگاه کردستان

previous studies showed that the level of total mercury (thg) in sanandaj gheshlagh reservoir (sgr) water is higher than those limits established by who (i.e., 1 µg/l). therefore a research project to evaluate the level of total mercury in sgr sediments and benthos masses during july to december 2009 from three different sites with different depths (2 to 30 meters) was carried out. samples were...

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